refactor: rename package fabledassistant -> scribe (code-only)

Renames src/fabledassistant -> src/scribe and all imports, plus the
default DB name and DB user/password (fabled -> scribe) in config +
compose. 952 refs / 154 files. Reverses the old 'internal name stays
fabledassistant' convention.

Code-only: live databases are still physically named 'fabledassistant'.
Deployed environments must set POSTGRES_DB / POSTGRES_USER (or rename the
DB) since the defaults now resolve to 'scribe'. Repo (FabledScribe), git
host (fabledsword), MCP (fabled-git) and the image name (fabledscribe)
are intentionally unchanged.

ruff check src/ clean locally; CI (typecheck + pytest) is the gate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/test_services_planning.py

@@ -13,15 +13,15 @@ async def test_start_planning_creates_plan_task_and_returns_rules():
         "truncated": False,
         "subscribed_rulebooks": [{"id": 2, "title": "FabledSword family"}],
     }
-    with patch("fabledassistant.services.planning.notes_svc.create_note",
+    with patch("scribe.services.planning.notes_svc.create_note",
                AsyncMock(return_value=fake_note)) as mock_create, \
-         patch("fabledassistant.services.planning.rulebooks_svc.get_applicable_rules",
+         patch("scribe.services.planning.rulebooks_svc.get_applicable_rules",
                AsyncMock(return_value=applicable)), \
-         patch("fabledassistant.services.planning.notes_svc.list_notes",
+         patch("scribe.services.planning.notes_svc.list_notes",
                AsyncMock(return_value=([], 3))), \
-         patch("fabledassistant.services.planning.projects_svc.get_project",
+         patch("scribe.services.planning.projects_svc.get_project",
                AsyncMock(return_value=MagicMock(goal="ship it"))):
-        from fabledassistant.services.planning import start_planning
+        from scribe.services.planning import start_planning
         out = await start_planning(user_id=7, project_id=3, title="Plan it")
 
     # Created a plan-task (status set => task, kind=plan)
@@ -39,8 +39,8 @@ async def test_start_planning_creates_plan_task_and_returns_rules():
 
 @pytest.mark.asyncio
 async def test_start_planning_raises_when_project_not_found():
-    with patch("fabledassistant.services.planning.projects_svc.get_project",
+    with patch("scribe.services.planning.projects_svc.get_project",
                AsyncMock(return_value=None)):
-        from fabledassistant.services.planning import start_planning
+        from scribe.services.planning import start_planning
         with pytest.raises(ValueError, match="project 999 not found"):
             await start_planning(user_id=7, project_id=999, title="x")